skills/sales-gumroad/SKILL.md
Gumroad platform help — digital product sales, subscriptions, memberships, license keys, email broadcasts, affiliate management, Discover marketplace, Ping webhooks, and REST API. Use when setting up a Gumroad store, products not selling on Gumroad, Gumroad fees eating into profits, Gumroad vs Payhip or Lemon Squeezy, license key verification not working, Gumroad webhook or API integration, email broadcasts not reaching buyers, or affiliate program setup on Gumroad. Do NOT use for general digital product strategy (use /sales-digital-products) or checkout optimization across platforms (use /sales-checkout).
npx skillsauth add sales-skills/sales sales-gumroadInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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If references/learnings.md exists, read it first for accumulated platform knowledge.
What do you need help with?
What's your situation?
Product type?
Revenue level?
Skip-ahead rule: if the user's prompt already contains enough context, skip to Step 2.
| Problem domain | Route to |
|---|---|
| Digital product pricing, launch strategy, platform comparison | Run: /sales-digital-products {your question} |
| Checkout page optimization, order bumps, cart abandonment | Run: /sales-checkout {your question} |
| Membership structure, course design, retention | Run: /sales-membership {your question} |
| Email sequences after purchase, nurture campaigns | Run: /sales-email-marketing {your question} |
| Affiliate commission structure, recruitment strategy | Run: /sales-affiliate-program {your question} |
| Webhook/API integration with other tools | Run: /sales-integration {your question} |
If the question is Gumroad-specific (setup, features, pricing, API, troubleshooting), continue to Step 3.
Read references/platform-guide.md for the full platform reference — modules, pricing, integrations, data model, workflows, API quick reference.
Answer the user's question using only the relevant section. Don't dump the full reference.
You no longer need the platform guide — focus on the user's specific situation.
references/gumroad-api-reference.md for endpoint details. The Ping webhook sends POST data as x-www-form-urlencoded, not JSON.product_id not product_permalink for verification.If you discover a gotcha, workaround, or tip not covered in references/learnings.md, append it there.
Best-effort from research — review these, especially items about plan-gated features and integration gotchas that may be outdated.
x-www-form-urlencoded, not JSON. Many webhook handlers expect JSON and silently fail.product_id instead of product_permalink for license verification./sales-digital-products — Digital product sales strategy (pricing, platform selection, launch playbooks)/sales-checkout — Checkout optimization (upsells, order bumps, payment plans, cart abandonment)/sales-membership — Membership sites and online courses (content delivery, retention, pricing)/sales-email-marketing — Email marketing (launch sequences, nurture campaigns, broadcasts)/sales-affiliate-program — Affiliate program design (commissions, recruitment, tracking)/sales-integration — Connecting tools via webhooks, Zapier, API pipelines/sales-payhip — Payhip platform help (lower fees, PayPal support, similar features)/sales-lemonsqueezy — Lemon Squeezy platform help (5% fee, MoR, license keys)/sales-do — Not sure which skill to use? The router matches any sales objective to the right skill. Install: npx skills add sales-skills/sales --skill sales-doSkill does: Asks about pricing, traffic source, and product page. Discovers they're relying on Gumroad Discover for traffic (which requires a prior sale to activate). Recommends driving traffic from email list and social media. Suggests a lead magnet (free chapter) to build an email list via Gumroad's email collection. Reviews pricing — if under $10, flags the high effective fee rate and suggests bundling to increase AOV.
Skill does: Loads the API reference. Walks through POST /licenses/verify with product_id and license_key parameters. Notes the Jan 2023 change from product_permalink to product_id. Shows how to check uses count against a limit and handle test purchases. Points to webhook signature verification via x-gumroad-signature.
Skill does: Asks about current monthly revenue and product types. Calculates fee comparison: at $3K/month, Gumroad costs ~$360/month (10% + $0.50 × ~60 sales) vs Lemon Squeezy at ~$165 (5% + $0.50). Notes LS handles tax as MoR (Gumroad now does too since Jan 2025). Flags PayPal availability (LS has it, Gumroad doesn't). Routes to /sales-digital-products for deeper platform comparison.
Symptom: Customers report "there was a temporary problem" at checkout Cause: Momentary gateway failure, 3D Secure friction, or card declined Solution: Wait 10–15 minutes and retry. Check email and bank — the charge may have gone through. If persistent, try a different card. Gumroad has no PayPal fallback since Oct 2024.
Symptom: POST /licenses/verify returns an error (HTTP 500 for newer products, or 404 "license does not exist")
Cause: Using product_permalink instead of product_id for products created after Jan 9, 2023 — these return HTTP 500 with a message telling you to set product_id
Solution: Switch to the product_id parameter. Note increment_uses_count defaults to TRUE (the counter bumps on every verify) — pass false if you're only checking validity. Test with a known-good key first.
Symptom: No POST requests hitting your endpoint after a sale
Cause: Ping endpoint URL not configured, endpoint returning non-2xx, or HTTPS certificate issue
Solution: Go to Settings → Advanced → Ping. Paste your endpoint URL. Click "Send test ping" to verify. Ensure your endpoint returns 200 and accepts application/x-www-form-urlencoded data. Gumroad retries up to 3 times over 15–20 minutes.
tools
Wizlogo (wizlogo.com) platform help — a budget online logo maker (template/style-variation, marketed as "AI") plus a hub of FREE branding tools (business-name, blog-name and slogan generators, business-card maker, invoice generator, color converter, domain search). The pricing traps: the FREE logo is PERSONAL-USE-ONLY; the two cheap paid tiers are RASTER PNG/JPG only — Single (~€39.99 one-time) and Unlimited (~€3.99 per WEEK, recurring) — and VECTOR (SVG/PDF/EPS) is gated to the ~€299.99 Enterprise tier, which also bundles human designer edits and a social kit. Transparent PNG is on all paid plans. Use when making a Wizlogo logo, understanding free-vs-paid or personal-vs-commercial use, which tier unlocks vector/SVG for print, the weekly-subscription billing trap, its free name/slogan generators, or whether it has an API (UI-only — no public API, webhooks, Zapier or MCP). Do NOT use to just generate the business name (use /sales-namelix) or to compare/validate branding tools (use /sales-idea-validation).
tools
VistaPrint platform help (vistaprint.com, a Cimpress company) — the small-business design + print + digital-marketing platform: a free AI Logomaker (4 generations, 60 more after free sign-up) exporting SVG/PNG/PDF at 4000x4000 with no watermark, a free Brand Kit, business cards/flyers/signage/apparel/promo print, and a website builder. THE RIGHTS TRAP: VistaPrint states NO intellectual-property rights transfer on an AI-generated logo — you get usage rights but CANNOT register it for trademark or copyright; only its human designer service transfers full IP. Use when making a VistaPrint logo, asking if you own or can trademark it, running out of AI logo credits, printed colors not matching the screen, bleed/DPI/font file-prep rejections, or asking whether VistaPrint has an API (the consumer site does not — automation runs through the parent Cimpress Open partner-fulfilment API). Do NOT use for Vista Social scheduling (use /sales-vistasocial) or comparing logo tools market-wide (use /sales-idea-validation).
tools
Turbologo (turbologo.com) platform help — a budget AI/DIY logo maker: enter a business name + industry, pick icons and colors, and it proposes logo concepts you refine in an in-browser editor, then pay a one-time fee to download (designing is free, previews are watermarked, downloading is the paywall). Vector SVG/PDF is gated to the mid tier and up; the top tier adds a brand kit (business cards, letterheads, email signatures, social assets). Use when generating a logo in Turbologo, choosing which download tier to buy, vector SVG vs raster PNG, removing the free watermark, the time-limited edit-after-purchase window, pay-to-download pricing questions, whether an AI logo is yours to trademark, or whether Turbologo has an API to bulk-generate logos (it is UI-only — no public API, webhooks, Zapier, or MCP). Do NOT use to generate the business name (use /sales-namelix), compare or validate branding tools across the market (use /sales-idea-validation), or build wider marketing creative (use /sales-canva).
tools
Online Logo Maker (onlinelogomaker.com) platform help — a long-standing free/freemium DIY logo maker: build the mark yourself from icons, shapes, text, and fonts — MANUAL/template-based, NOT enter-a-name-get-AI-concepts. The free pack downloads a LOW-RES 300px PNG with a background; vector SVG, transparent PNG, and 2000px high-res are gated to a one-time lifetime Premium pack (not a subscription). The free tier's commercial-use rights are disputed by reviewers — clean ownership effectively needs Premium, and a shared-icon mark can be non-distinctive. Use for building/editing a logo here, free download vs Premium, vector SVG or transparent PNG, one-time pricing, commercial-use/trademark terms, near-namesake confusion (NOT LogoMaker.com / LogoMakr / Logomakerr.ai), or whether it has an API (UI-only — no API, webhooks, Zapier, MCP). Do NOT use to generate the business name (use /sales-namelix), compare branding tools across the market (use /sales-idea-validation), or build wider creative (use /sales-canva).